Spherical Roller Bearings SKF 22256 CC/W33

The 22256 CC/W33 self-aligning roller bearing from SKF Wälzlager, measuring 280 × 500 × 130 mm, can withstand high radial loads and compensates for misalignment through angular movement.

The 22256 CC/W33 self-aligning roller bearing is an open, double-row roller bearing designed for heavy mechanical loads. With a bore of 280 mm, an outer diameter of 500 mm and a width of 130 mm, this large bearing is primarily used where high radial forces act on the shaft. Thanks to the hollow spherical outer ring raceway, the bearing automatically compensates for misalignment. Manufactured from standard roller bearing steel 100Cr6, it is suitable for operating temperatures ranging from -30 to +200 degrees.

What is the 22256 CC/W33 self-aligning roller bearing suitable for in industrial applications?

The 22256 CC/W33 self-aligning roller bearing is designed for heavy-duty industrial applications involving high loads and significant shaft deflection. Thanks to the double-row roller arrangement, the design can simultaneously accommodate high radial loads as well as axial forces on both sides. The component compensates for angular misalignment between the shaft and housing during operation without generating additional friction. In combination with suitable stand-mounted housings, the bearing forms a low-maintenance unit for demanding operating cycles.

What advantages do the W33 lubrication groove and P5 running accuracy offer with this bearing?

The suffix W33 denotes a circumferential lubrication groove with lubrication holes in the outer ring, which directs lubricant directly into the interior of the bearing. Together with the increased running accuracy P5, this targeted relubrication reduces wear and ensures smooth guidance of the rolling elements. As this is an open design without an integrated seal, you should adapt your housing’s external sealing concept to the ambient conditions. The built-in sheet steel cage guides the rollers reliably, even during rapid load changes.